Eddie Howe
Arguably the most sensible option out there currently with the 43-year-old currently out of work and having long been tipped for the senior England job.
Whether or not he can be convinced to take the under-21 job is another matter though as Howe has also been linked with the Celtic position.
Frank Lampard
Another man currently out of work and someone trying to rebuild their reputation somewhat, who is also on the radar for Celtic supposedly.
The Chelsea icon may see the under-21 job as a step backwards from managing the Blues, but it could also be an opportunity to gain some global experience.